Add note about breaking change, fixes #8274
Add note about breaking change, fixes #8274

stof/composer,fabpot/composer,pierredup/composer,nicolas-grekas/composer,naderman/composer,andrerom/composer,johnstevenson/composer,stefangr/composer,staabm/composer,floverdevel/composer,composer/composer,milleruk/composer,localheinz/composer,alcohol/composer